Above the distributor casing the fluid area is sealed off by a shaft seal housing (9)
through which the shaft (3) passes. The shaft passage is sealed towards the
atmosphere with a dynamic seal.
The shafts (3a, 3b, etc.) are supported by product-lubricated radial plain bearings (10)
and rolling element bearings (8). The rolling element bearings (8) are located in a
bearing housing (6), which is mounted on the distributor casing.
4.6 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪ Pump
▪ Can
▪ Shaft coupling in accordance with the order specifications
▪ Sole plate
▪ Accessories, e.g.:
–
Strainer
–
Measuring instruments
4.7 Noise characteristics
100
80
60
10 100 1000
L
pA
(dB)
P
N
(kW)
b
a
c
Fig. 4: Diagram of noise characteristics, values for 50 Hz.
L
pA
Sound pressure level measured at
surfaces in [dB]
P
N
Rated power input in [kW]
a Characteristic curve at
speed 2900 rpm
b Characteristic curve at
speed 1450 rpm
c Characteristic curve at
speed 980 rpm
NOTE
The surface sound pressure level is a spatial average; as per ISO 3744 and EN 12639. It
is valid for a pump operating range of Q/Q
opt
= 0.8 - 1.1 and non-cavitating operation.
NOTE
Allowance for 60 Hz operation: 3500 rpm + 3 dB, 1750 rpm + 1 dB, 1160 rpm ± 0 dB
4 Description of the Pump (Set)
22 of 78
WKTR
To Next Page
Loading...
